Hi Rick,
I got the same thing today when I applied Windows updates (including some Outlook 2007 updates) in a batch. I know you said you are not aware of any software changes on the server, but I don't know whether you're the one and only admin of that box or what.

If you're logged in to the BES box, did you happen to also get a Microsoft Visual C++ Debug Library "Debug Assertion failed!" error in a pop-up? Maybe one that implicates BlackBerryAgent.exe in the details? I got this each time I was restarting the BB services, in the recommended order, trying to see if that would help solve my problem.

I run ZCB beta 4, which had been running fine, in a VM and luckily took a snapshot of the server before doing updates because I feared any update to Outlook would mess up something. I was right. I even had noted awhile back, from a sticky (I think) in this forum that said either Windows Update or Outlook repair procedure may overwrite connector’s core modules and correspondingly break calendar functionality and that it is advised to run ZCB BETA4 connector repair after aforementioned procedures are completed. Well, I reran the .msi and nothing got better, so I rolled back to the snapshot to save time.

It is possible that removing the suspected updates would fix the problem, but I wound up not having to go that route (yet--I obviously want to learn what was wrong and be able to update in the future!) since I could roll back to the snapshot I had taken. I actually found your post because I have a little time now to start researching what might be the problem I encountered today....

Thanks for the confirmation Jhamilton. I only install updates by hand, hence the long list there in my previous post, but at least I don't get nasty surprises at random times this way. Any chance your experience today could be narrowed down to one specific patch? I'm guessing the KB969907 one (that specifically was for Outlook 2007) was it, but don't have the time to be "scientific" about it.

So you did not install SP3 to Outlook? And did you have to recreate BlackBerryServer and BlackBerryManager profiles, or did the new install pick the profiles back up?

No specific patch

Unfortunately, I did not have the time to remove each of the patches individually, nor did I wish to reapply them after discovering the issue.

The good thing is that you do not need to recreate the profiles. You can leave the mail profiles alone. Uninstalling and Reinstalling Outlook does not appear to make any changes to the mail profiles. That seems to be stored elsewhere or at a minimum is left alone by the uninstall process.

My first attempt was to install Outlook 2007. I am not aware of a SP3 for 2007. SP2 however can not be uninstalled. So a total uninstall was required to remove the SP2.

I'll be working more on this tomorrow. Hopefully I figure out exactly which patch caused the pain.

This is fixed as a part of Bug 38071. New version of BES connector will be posted very soon. In the meantime, please try using Outlook 2007 with SP1 or without any service packs. In addition, disabling Windows update on BES machine will further protect BES from similar incidents in the future.